Wheel



W. B. KERRICK.

KP Llcfmow APR. '14, 41919 Patented May 10,1921.

3 SHEETS-SHEET l.

1N VEN TOR. [br/fer .5. Ferrari W. B. KERRICK.

WHEEL.

APPLICATION FILED APR. I4..I9I9.

wie. KERRICK.

WHEEL. l APPL'ICAT'ION FILED APR.v 14, |9l9.

Patented May 10, 1921. 3 SHEETS--SHEET 3.

III!

A TT ORNE Y.

A 'U ETE i i WHEEL.

`To all whom #may concern:

Be it known that I, kVVAL'IER B. KERRIOK, a .citizen of the UnitedStates, residing at Los Angeles, in the county of Los Angeles and Stateof California, have invented new and luseful Improvements in Wheels, of

ywhich the following is aspecification.

wearing friction other than molecular friotion in the connectionsbetween the inner and outer wheel portions.

.'-section. n v p, Y i i Fig. 3 is a-detailin perspective illustratingThe invention is illustrated inthe ,coil engagingrmember. y

Another object .is to provide a construe-'1y tion whereby a spiralspring may be rigidly and Vdetachably engaged at both its endsthroughout the major portion of its endcoils to Vobviate i''rictionalwear and loose oon'n'ec; tions betweenthe spring and its mount-ing.

Another object is to provide ameans for engaging anintermediate .coil ofa spiral spring throughout the major portion rof its length torigidlysupport the spiral spring intermediate its ends and yetpermit-independent movement of. the portions othevspiral spring onopposite sides of its rigidly' mounted central portion without 'frictionf between thespring'andits mounting..v

Another object is to lprovide 'means'adapted on assembling' the wheel toplace a series Vof spiral springsunder tension. Y

Other objects will appear hereinafter.

panying drawings in which:v

Figure 1 is airagmentaryview elevation withy parts broken Vawayshowingay `vehicle wheel constructed with this invention.- f

Fig. 2 is aview of the .vehicle wheel as seen in end elevation andpartlyin vertical the-manner of mounting the spiral springs.

Fig. l is a detailin perspectivesho'wing the manner kotiz'orniingthe'intermediate.

l Specification of Letters Patent. Patented Application nled April 14,1919. v'.erialv No. 289.964.

I Fig. 9 is a'detail ing a modified form of 'the intermediate accomi .inside` Y any desired :manner.-

in accordance PATENT .fgorrlciezjl Y WALTER B. KEEEICK, -oE Los ANGELES,4ciiLiEoEiiiiii.

. Fig. 5 is a detail in perspective lillustrating the 'manner offormingthe end coil engaging member. Y Y

'May 1o, i921.

Fig. 6 is a detail section in perspective l showing a portion-of thespring tensioning annulus.v y'

lFig. 7 is a detail in section illustrating the mannerfof mounting atransverse spiral spring between the 'inner andv outer wheel portions.k

Fig. 8 is a detail modified form'of gaging member.

in perspective showing a the intermediate coil enin perspectiveillusti'atcoil engaging member. l, vI have here shown myinventionasplied to a vehicle wheel for the purpose fof n, .Y

llnstratingthe preferred embodiment there'. of,`which wheel consistsin abroadsense'of Van innerwheel' portion indicated at 10, an

outer wheelportion 11 and a series of horiY ingV spiral springs12"-interposedbetween said inner and outer wheelv portions." vThel innerrand router wheel ,portions` may be of' any suitable'constructionaccording to the use topwhich'l the wheel is to be put withoutl afectingthe spirit of-this invention, as myy present invention primarily residesin the manner of mounting the spiral 'springs Y zontally disposed Yandtransversely extend-1 n y ratherthanf in anyparticular form 'of' the'inner and outerwheelmembers other than the immediate spring enga-ging'members and their supports and adjustments.'

I However, theinner wheel is here shown as vcomprising asuitable hub 13`itted'jwithy st'itutinga support for an inner annular'y member 15here-shown iasfformed integral with the disks 14, butwhich mayobviouslybe kformed separatevand aHXed tothe hub in :The outer wheel portion Ycomprising 4a elly, 16 on which 'a "cushion tire 117, fis mounted, thisvtelly being Vformed is here shown a's Sion withshoilders 18` on theinner ,marginall Y edges kof its side lfaces to? form abutmen's,

after. 'i The outer wheel 'portion is'design'ed toenoircle the innerwheel portion'in spaced relation .thereto.

In carrying out the embodiment of my inventonas-shownfn FigsQ, 3,4,a1`1d"7,'ther v the purpose of which will appearhereininner rim memberlconsists of a pair of annular plate portions designated as 19 and f 2Ocontacting faceto face and held together krby rivets 21 or othersuitable fastenings. kTheplates 19 and-20`are formed at intervals ithroughout their peripheral edges with op- `posed substantiallysemi-circular or arcuate Ychannels 22 and 23 as particularly shown in 1i, @lathe-ends of which channels open at theedges ofthe platesj Thesechannels form a seat for an intermediate coil of'a spiial p spring 12ydesigned to bedisposed between the platesand rigidly secured thereto onclamping the plates together on-opposite y sii-ed, forfacilitatingremoval of the spring,

sides ofthe coil by the fastening 21. If dethe plates may consist ofseparate. arcuate portOIlS as indicated at 24 and 25 in Fig. 9

and secured tothe rim 15 by rivetsj26 or other suitable fastenings.:`-

` The'spring and engaging means is here ' shown as ,consisting of a pairof sheet'metal Fig. 5; these channels being arrangedfoppo-l Y -sitethechannels`22 and23pn the inner rim member andadaptedfto receive theouter v,a0

rings127and 28, ,each of which is formed with arcuate channels 29 on itsouter face, having an end opening toi the inner marginal edge vofthering as particularly shown in coilsfof the springas shown in *Figsf3`and'7. In attaching theouter ends of the spring tothe outer wheelportion apair of loose rings30 and v31 Vare provided, which rings havelsuch .outside diameter as to slidably engage the inside ofthe rimqlf,and are rformed with'threadedside` openings 32toV i y receive bolts33,asv willpresently'y be described. `The rings 27 and 28`k`are ofan out-"iside diameter/,less thanthe inside'diameter y4o of the rim 16 and haveopenings 34 adapted A to register'with'the openings. 32 in the rings.L f30E-and 31; the rings 30 andy 31 being 'disi. k'posed against theinnerfaces of the 'rings27 n willi-be disposed inspaced relation to V4fthe. Ys jsideiplatesas indicated by the `dottedlines a 'i i Fig- 7.x Ontightening the bolts'byscrew-'Yk jing them into" the threaded openingsin*Y the,V` vrings 30 'and-131 thexheads of the bolts will A `^VYt0engage the side plates so that onV advancing 1 are in their' normally;contractedposition,

theiboltsrinto the inner rings 30 and 31,"the

der tensionk throughout the wheel. The

springs will thus exert an inward pull on the side plates in oppositekdirections to normally maintain the outer wheel portion in concentricand alined relation to the inner1 Wheel portion and, being undertension, will operate to yieldably oppose movement of the inner andouter portionsof the wheel in relation to each other. The spiral springseX- -tending horizontally and axially of the wheel, will permit, thoughyieldably oppose .movement of the outer and inner wheel portionsr inrelation to each other' in every direction,-thus affording resilientuniversal movement of the wheel portions.

sides in rigidly and securely gripping the coils ofthe spring at theirpoints of engage, mentV with the inner and outer wheel portions, as bythis construction wearingfriction between the springs and theirfastenings is prevented and frictional wear on the springs is reducedsolely to tion.k Y l f If desired,. the end fastenings of the molecularfricsprings may consist of a series ofseparate s v An important featureof the invention rel ioo of thejrings 30; ythe rings 27, 28 and 30 beiing'formed with edge slots 42 through which the studs may pass whenpositioning the rings .within the outer rim, and formed on the outervfacesof the rings 30 are notches 43 adapted to engage the studs to holdthe` rings 30 against peripheral movement.

vIt isdesirable that the springs 12 be held against turning movementrelative to their supporting members,and for this purposel the channels29 inV the rings 27`and 28 are terminatedto form rshoulders 44 las shownin Fig. 5 against which the ends'of the springs aut.f'.;.- i

From the foregoing "it ywill be seen thaty when the springs`12 arearrangedy in the in-y ner member with the major portion of anintermediate coil clamped'between the en-` gaging 7members 23 and 24andywith their terminal coils clamped between-the rings 27 lio iis

and'28 and the outerl plates .35 and 36 with the ends of the springsabutting against the shouldersflft inthe channels29, they will berigidly held against turningv movement, at their points ofconnectiointhus obviatingV frictional wear between the springs and stheir vsu ortin members. A `substanti l latter .will bey c aused tomovexoutwardly in i pp g a -a position against the inner faces of the fside plates, thus placing the springsvl2 unconnection's'thuseffectedbetween the inner and outer wheel members by' which positioningofl these members relative 130 each otherV is insured 'andlost motionbetween the inner and Vouterwheel membersand'b'e- Y tween the springsand theirconnections is rvanced -or retracted relative `to each otherinengaging land disengaging the -rings from casion may require.V

the outer :member the parts are adaptedfto `be readily assembled anddismantled asvoc'- As a means for limiting diametrical move- .mentof theinner and outer wheel portions in relation to each other and for thepurpose of absorbing shock inevent such limit of movement should occur,an annular bumper 45 is mounted on the inner periphery of the outerwheel member and is `formed of rubber or other resilient material. Thisbumper is held in place by a split spring ring 4:6 adapted to) expandinto a channel formed in the outer wheel member'to hold the bumper inplace.

While I have shown and described a speciic embodiment of my inventionitis manifesttha-t various changes may be made in thedetailsoifconstruction without depart- Y ing from the spirit and scope of theinven- D tion as set forth in'the` appended claims. I claim: Y l. In awheel, an inner member and an outer member Vincluding a rim, aseriesof'Y spiral springs having their intermediate portions rigidlyaixed to the inner member and their end portions rigidly aiiixed to theouter member, saidv springs arranged tok extend substantially parallelwith the, axis of said inner member, and means embodied in theconnection between the ends oi' said springs and the outer member forcollectively de-Y mountably attaching and detaching the springs relativetothe rim to permit removal i and replacement of the rim withoutseparately disengaging the springs.

2. Ina wheel, an inner member and an' outer member including a rim,aseries of spiral springs having their intermediate portions rigidlygripped by said inner member to dispose the end portions of thespringson opposite sides of the inner member Ysubstantially` parallel with theaxis thereof and with their terminals rigidly vaiiixed to said outermember, land means embodied in the coiinection between said springsand'the outer member for collectively aii'ectingtension oi said springsand whereby the `rim may bev removedV andV replaced without separatelydlsengaging the spring. s

3. ln a wheel, an inner member, a tread aiinulus, a series of spiralsprings projecting from the sides of said inner member and v means fordetachably connecting the outer ends of said springs. collectively tosaid tread annulus and screw nieansadapted Vto place said springscollectively under tension and 'whereby 'said springs will exertopposedinward pulls on said treadV annulustoward said body member. y f f Y a.lira wheel, a pair of joined plates, a spiral vspring having a coilintermediatel its endsengaged throughout the'su'riface thereof betweensaid plates, members to which the ends of said springs are removablyattached and an annu'lus to vwhich said members are demountablyconnected.

5. Inl av wheel, anfiniier member land' air outer member, a series ofspiral springs extending between said members, and means Y fordetachably connecting said springsto 'said inner and outer membersrigidly and immovably engaging a substantial portion of coils of saidsprings yin the direction of their length bothcircumferentially and latsYing said rings to said outer memberV adapted to place said springsunder tension. y

7. In a wheel, an inner member andan outer member, a ring spaced fromeachV side of the innermember, a series of .spaced springs `extendinghorizontally fromeach side of said inner member, and attached relativetoY said rings,y and screw means-acting between said outer member andsaid rings whereby saidy rings may be advanced in opposite directions toplace said springs in and out of tension collectively.

vk8. Ina wheel, aninner and an outer member, a demountable ring memberspaced from each side of said inner member, spiral` springs extendingbetween said rings and the inner member, a demountable Vplate engageablewith` each side of the member, and

screwmeansadapted to connect Vsaid plates Y and the rings for advancingor retracting said Vrings and effecting demountable connection betweensaid inner and outer members and placing said rings in and out oftension collectively. n

9. in a wheel, an outer member, a pair of spaced flangerings on theinner periphery kof said outer member, an inner member havingseparable'flange portions, a series Yof spiral springs each of whichsprings has an intermediate spiral engaged throughout its surfacebetween the flanges on said 'inner member in rigid and detachableconnection therewith; said springs having a substantial portion thereofprojecting on both sides .of said inner member, Vand having their end`coils/rigidlyand detachably connected di-k rectly tothe langerings onsaid outer member to allovv yieldable, universal, and limitedylrnovementj.between said inner and youter' membersvvitliout friction. v

f 10.y In a-'WheeLanlnner member-and an outer member, a series ofspi-ralvsprings eX- tending laterallyrfrom said inner member, and meansdetachably engageable With said kouter member for rigidly gripping theend spirals of said springs throughout; a major portion of their lengthsand the surfaces i, thereof embodyinggabutment's engageable with theends'o said springs to hold the springs against turning movement.

y1l. In a Wheel, an outer member and an inner member, a series of spiralsprings eX- tendinglaterally from said inner member, a

" pair of ring plates having arcuate channels

